Electronics Forum | Thu Jun 26 17:40:21 EDT 2003 | Steve
Wanted to inquire if anyone has a way to monitor cleanliness of boards that are assembled with a no-clean process. I'm aware that incoming board cleanliness can be monitored, however, I am after checking of cleanliness of boards after assembly. Wit
Electronics Forum | Wed Jul 02 06:34:32 EDT 2003 | mkehoe
???? What? I think I follow your logic. Bottom line is, using the same name, p.1 (that's p (dot) 1) over and over for every stencil you produce can lead to confusion both in our CAM dept as well as our vendors. Like calling every board you produce PN
Electronics Forum | Wed Jul 02 03:12:31 EDT 2003 | Joanna
We have been having problems with solder paste balls around fine pitch ICs and have decided that cleaning the boards in an ultra sonic cleaner may reomove these solder balls. However we are worried that the ultrasonic cleaning process may damage the
Electronics Forum | Thu Jul 03 15:29:46 EDT 2003 | bpan
Hello Jim, We build boards that have traces under the parts all the time. For the most part, we have no problems but on one product we have an 0805 that bridges 2 traces with a very tight seperation and if any solder smears (under the part)we can and
Electronics Forum | Wed Jul 09 11:58:03 EDT 2003 | sam
When we try another test by using less solder paste, we found under the microscope that the solder was actually stick on the LED gold surface, but not having good wetting. By this finding, we can basically conclude that it was poor solderability caus
Electronics Forum | Sat Jul 12 18:05:06 EDT 2003 | ronald mupfeki
Our company wants to establish a department that deals only in rework and repair of populated through hole & smt pcbs from outside companies .However given the wide variety of suppliers & with all equipment looking like it has been branded can anyone
Electronics Forum | Tue Jul 15 16:31:11 EDT 2003 | GerberGrab
If you just need gerber to placement list processing, then you might be interested in GerberGrab. It's not as sophisticated as the more expensive packages that include this capability, but it's getting better all the time and it's much more affordabl
Electronics Forum | Wed Jul 16 11:54:25 EDT 2003 | MA/NY DDave
Hi, I agree with everyone else talk to the Mfg and ask for their recommended profiles. They should know the heating and the cooling profiles. If you really want to do this yourself you are going to have to run several experiments to determine just
Electronics Forum | Wed Jul 23 17:07:27 EDT 2003 | dbdavis
Dear Colleagues, I'm am experiencing some problems with nonwetting of primarily 0603 packages. The problem is infrequent but occures just enough for my QA dept. to notice. My reflow profile seems to be correct and the vast majority of parts solder f
Electronics Forum | Tue Sep 23 17:52:12 EDT 2003 | lysik
I work for a large Contract manufacturer. We use Fuji Siemens and Universal. Universal is by far the most stable reliable system. They always have the parts in stock we need. Great support. Samsung has now pulled out of direct sales in the US. I woul
